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W. F. GOUINLOCK. GREENHOUSE. APPLICATION mm IAN. I1. IQIII. Iwzuzwfo IuIy I7, I9I9.

v1 ,313,81 Patented Aug.19,1919.

WALTER F. GOUINLOCK '@y I v 3MP@ ATM Unwin srATEs k- To all whom t may concern:

Be it known that I, WALTER Famcmevn GoUINLooK, of the city of Toronto,vin the county of York, in the Irovince of Ontario, Canada, have invented certain new and useful Improvements in Greenhouses, of which the following is the specification.

My invention relates to improvements in greenhouses and the object of the invention is to devise a greenhouse with a minimum air space to be heated per area of growing surface and having a regulated supply of moist fresh air circulated from bottom to top thereby obviating the necessity of open- 15 ing windows and resulting in a great saving of fuel. It consists essentially of a plurality of beds one above the other each having an inclined glass roof, a fresh air inlet, a heating chamber, a water reservoir over which the heated air passes, a non-heat conducting curtain suspended over each bed between each bed and the glass a s ace through which the fresh warm air rises rom bottom to top, and a regulated ventilator located in the roof of the upper bed as hereinafter more particularly explained by the following specification.

Figure 1, is a front elevation of my greenhouse.

Fig. 2, is a vertical section through Fig. 1.

Fig. 3, is a plan section through Fig. 1 with the glass and frame removed.

In the drawings like letters of reference indicate corresponding parts in each figure.

1 indicates the foundation. 2 indicates a rear retaining wall. 3 indicates columns supporting the girders 4. 5 indicates beams carried by the girders 4 and by the columns 3. 6 indicates the window frames forming an inclined glass front 7 for the greenhouse. 8 indicates the floor carried by the beams 5. 9 and 9x indicate the walls of thehot beds 10', 102, 103, 104 and 105. 11 indicates a space between the outward wall 9x and the glass over which there is no ioor thereby allowing circulation of air between ioors.

12 indicates a non-heat conducting curtain secured at its lower edge to the wall 9 and at its upper edge to the beams 5 at an angle such as not to interfere with the suns rays. 13 indicates a partition wall leaving a space 14 between it and the rear wall 2. 15 indicates a ventilator in the roof. 15x indicates a damper for the ventilator 15. 16 indicates a trourrh formed at the lower extremity of the frames 6. 17 indicates a Water Specication of Letters Patent.

PATENT OFFICE.

WALTER FAIRGRIEVE GOUINLOCK, 0F TORONTO, ONTARIO, CANADA.

GREENHOUSE.

PatentedAuO. 19.11919.

Application filed January 17. 1916. Serial No. 72.498. Renewed July 17, 1919. Serial No. 311.681.

reservoir. 18 indicates a pipe communicating between the trough 10 and the reservoir 17. 19 indicates the fresh air inlet leading to the heating chamber 20.

Having described the principal parts involved in my invention I will briefly describe the operation of the same.

Fresh air enters'at the inlet 19 and passes from the heating chamber 20 over the water in the reservoir 17 thereby becoming moist and thence up through the space 11 circulating over the bed 10 `and in a similar manner the same air passes through the successive spaces 11 over the beds 102, 103, 104 and- 10" finally escaping through the ventilator 15 regulated by the damper 15". As there are times when moisture is not desirable in the heating medium or a lesser degree of impregnation, the reservoir 17 could be emptied, or covered or partially covered to bring about the desired humidity.

A thermostat might be used in conjunction with my device to automatically control the temperature of the air.

From the drawings it may be seen that only the actual space required for growing purposes is required to be heated as the nonconducting curtain 12 prevents the loss of heat in the rear portions 14 of the greenhouse.

The space 14 behind the partition 13 may be utilized as a root house, for growing mush rooms or any such purpose for which a dark place is necessary.

Communication between ioor levels may be provided either by stairs in the passageway between the wall 9 and the partition 13 or by elevator, the latter being preferable for Work on a commercial scale.

The invention shown in the accompanying drawings relates particularly to hillside greenhouses but by substituting a supportmg wall for the Letaining wall 2 the same idea could be worked out on level ground. Again, the hill might be cut in steps thereby eliminating the back portions 14 but using the same system of beds and air circulating means, and hence it will be seen that although I have shown but one form which my invention may take many minor changes may be made without departing from the spirit of the invention.

Hence it may be seen that I have devised a greenhouse in which a minimum air space has to be heated and in which the heat is conserved, first by passing the same heatg consequent thereto. f o

What I claim as my invention' is- In 4a greenhouse, a heating chamber, a series of beds having front and rear Walls Vl0 arranged one above the other so that each Y to the rear wall of a lower bed.

WALTER FAIRGRIEVE GUINLOCK. Witnesses:

M. EGAN, Y

G. E. TRELOAR.

Copies of this'patnt may be obtained for live cents each, by addressing the Commissioner of Patents,

Washington, '.D. C. 

